Girls play in the sand on the beach as Israeli right wing activists protest outside the US embassy in Tel Aviv, Israel, Sunday, May 22, 2011. US President Barack Obama warned America''s pro-Israel lobby on Sunday that the Jewish state will face growing isolation without a credible Middle East peace process. He defended his endorsement of a future Palestine based on Israel''s 1967 boundaries but subject to negotiated land swaps as a public expression of long-standing U.S. policy. (AP Photo/Oded Balilty)

Girls play in the sand on the beach as Israeli right wing activists protest outside the US embassy in Tel Aviv, Israel, Sunday, May 22, 2011. US President Barack Obama warned America''s pro-Israel lobby on

Girls play in the sand on the beach as Israeli right wing activists protest outside the US embassy in Tel Aviv, Israel, Sunday, May 22, 2011. US President Barack Obama warned America''s pro-Israel lobby on Sunday that the Jewish state will face growing isolation without a credible Middle East peace process. He defended his endorsement of a future Palestine based on Israel''s 1967 boundaries but subject to negotiated land swaps as a public expression of long-standing U.S. policy. (AP Photo/Oded Balilty)

Girls play in the sand on the beach as Israeli right wing activists protest outside the US embassy in Tel Aviv, Israel, Sunday, May 22, 2011. US President Barack Obama warned America''s pro-Israel lobby on

Girls play in the sand on the beach as Israeli right wing activists protest outside the US embassy in Tel Aviv, Israel, Sunday, May 22, 2011. US President Barack Obama warned America''s pro-Israel lobby on Sunday that the Jewish state will face growing isolation without a credible Middle East peace process. He defended his endorsement of a future Palestine based on Israel''s 1967 boundaries but subject to negotiated land swaps as a public expression of long-standing U.S. policy. (AP Photo/Oded Balilty)